A lovely small pastel boulder opal. 5.23 carats. 20.5 x 7.6 mm. 3.4 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia....
A fun pastel striped boulder opal. 7.68 carats. 20.2 x 10.8 mm. 3.6 mm thick. Natural solid boulder opal. Mined by Sue at her Mt. Margaret opal mine in Queensland,...
